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Marta_Voda [28]
3 years ago
8

Michael wants to eliminate the variable y from the system below by adding. First, he will have to multiply one of the equations

by a number. Which step will enable him to eliminate y by adding?

Mathematics
1 answer:
Mariulka [41]3 years ago
7 0
First, he would multiply 2x + 2y = 6 by 3. 

7x - 6y = 8
2x + 2y = 6....multiply by 3
--------------
7x - 6y = 8
6x + 6y = 18 (result of multiplying by 3)
-------------add
13x = 26.......poof...the y's have been eliminated :)
x = 2


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as we know that for parallel lines, the slope is always equal.

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so the answer is y = -3x - 3

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3 years ago
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